Home ventilation, County Fermanagh
Continuous extract fans (dMEV) in County Fermanagh
Quiet low-energy fans that run all the time and boost automatically when humidity rises, across County Fermanagh.
- From £315 inc VAT per fan
- By arrangement

A dMEV (decentralised mechanical extract ventilation) fan is a low-energy extract fan that runs continuously at a quiet trickle speed and boosts automatically when it senses humidity or a light switch. Because it never fully switches off, moisture is removed steadily instead of building up between showers.
Every job in County Fermanagh gets a written quote before it starts and a commissioning record when it finishes. We cover Enniskillen and the villages around them.
dMEV fans in County Fermanagh at a glance
- Area
- County Fermanagh, Northern Ireland
- Towns listed
- 1, largest Enniskillen
- Postcode districts
- BT74 and BT94
- Price region
- Northern Ireland
- Survey
- By arrangement, travel quoted first
What continuous extract fans (dMEV) involves
A dMEV (decentralised mechanical extract ventilation) fan is a low-energy extract fan that runs continuously at a quiet trickle speed and boosts automatically when it senses humidity or a light switch. Because it never fully switches off, moisture is removed steadily instead of building up between showers.
Bathroom and en-suite
Through-wall or ceiling fans with humidity-controlled boost.
Kitchen
Higher-rated continuous fans where a ducted hood is not practical.
Whole-home dMEV upgrade
Every wet room converted at once, with trickle vents checked in the habitable rooms.
Guide prices in County Fermanagh
| Work | Guide price |
|---|---|
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £315–£550 inc VAT |
| Airflow testing and commissioning sheet for extract fans (up to 6 fans) (per home) | £135–£270 inc VAT |
Guide prices using Northern Ireland rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first. Travel is quoted separately for this area.
Common reasons people call
- Mould keeps returning in a bathroom with a working fan
- You manage rental homes and want ventilation that cannot be switched off
- You are refurbishing several wet rooms at once
Rules in Northern Ireland
In Northern Ireland, ventilation is covered by the Building Regulations (Northern Ireland) and Technical Booklet K. We design to the Northern Ireland guidance and measure the airflow achieved.
How the job runs
- Survey
- Specify
- Fit
- Commission
- Record
Towns we cover in County Fermanagh
Questions about continuous extract fans (dMEV) in County Fermanagh
Which rules apply to ventilation in County Fermanagh?
In Northern Ireland, ventilation is covered by Technical Booklet K of the Building Regulations (Northern Ireland). Workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations (Northern Ireland) 1993.
Is it expensive to run a fan all the time?
No. dMEV fans use very little electricity on trickle speed, typically a few watts, so running costs are low compared with the condensation and mould they prevent.
Are continuous fans noisy?
A correctly sized dMEV fan is very quiet on trickle; most people only notice it on boost. Noise usually means the wrong fan or a poor duct.
Which towns in County Fermanagh do you cover?
All of County Fermanagh, including Enniskillen. If your town is not listed, send the postcode and we will confirm.
Are prices different in County Fermanagh?
Our guide prices are adjusted by region. In County Fermanagh we use Northern Ireland rates, so continuous-running extract fan (dMEV) with humidity boost, flow tested is typically £315 to £550 inc VAT per fan.
Other services in County Fermanagh
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.